4x^2-13=-9x

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Solution for 4x^2-13=-9x equation:


Simplifying
4x2 + -13 = -9x

Reorder the terms:
-13 + 4x2 = -9x

Solving
-13 + 4x2 = -9x

Solving for variable 'x'.

Reorder the terms:
-13 + 9x + 4x2 = -9x + 9x

Combine like terms: -9x + 9x = 0
-13 + 9x + 4x2 = 0

Factor a trinomial.
(-13 + -4x)(1 + -1x) = 0

Subproblem 1

Set the factor '(-13 + -4x)' equal to zero and attempt to solve: Simplifying -13 + -4x = 0 Solving -13 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + -4x = 0 + 13 Combine like terms: -13 + 13 = 0 0 + -4x = 0 + 13 -4x = 0 + 13 Combine like terms: 0 + 13 = 13 -4x = 13 Divide each side by '-4'. x = -3.25 Simplifying x = -3.25

Subproblem 2

Set the factor '(1 + -1x)' equal to zero and attempt to solve: Simplifying 1 + -1x = 0 Solving 1 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1x = 0 + -1 -1x = 0 + -1 Combine like terms: 0 + -1 = -1 -1x = -1 Divide each side by '-1'. x = 1 Simplifying x = 1

Solution

x = {-3.25, 1}

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